Graphite tower is a tower equipment for gas-liquid or liquid-liquid mass transfer made of graphite material as the base material. Graphite material has strong corrosion resistance, but limited by the strength of the material, graphite towers generally have thicker walls. The pressure-bearing capacity and inner diameter are small. When the inner diameter exceeds 100mm or the internal pressure exceeds 0.2MPa, it is often reinforced with metal materials. Graphite towers can be divided into two categories: packed towers and plate towers according to their structure.

Graphite tower is an earlier and more widely used graphite tower. It is used in the mass transfer process of gas-liquid contact. Gas contact and mass transfer. The graphite packing tower is composed of tower section, liquid feed distributor, tower plate, head and packing, etc. The tower section is a hollow impermeable graphite cylinder, the tower plate is an impermeable graphite porous plate, and the filler is hollow impermeable graphite. The cylinder and the tray are made of impermeable graphite porous plates. The packing has various types such as Raschig ring and Pall ring. The material is ceramic, plastic or graphite. The inlet distributor is distributed according to overflow, voltage stabilization, and uniform distribution. It is designed with the principles and requirements of film formation, and is made of impermeable graphite material. There are many types, the function is to make the liquid reach the design position evenly, avoid the phenomenon of the central stem cone caused by the deviation, improve the mass transfer efficiency, and the length of the tower section is not suitable More than 4 times its inner diameter, otherwise, it should be divided into several sections, and liquid distributors are added between the sections. The structure and function principle of the liquid redistributor are the same as those of the liquid inlet distributor.

The main structure of the bubble formation of the graphite tower can be divided into bubble tower, sieve plate tower, float valve tower and other types. Pass through the small holes and tooth gaps on the bubble cap to transfer mass to the liquid on the tray. In the sieve tower, there are dense small holes drilled on the tray. When the gas rises, it rushes through these small holes to make the tray The liquid is bubbling to achieve mass transfer. The tower body is a hollow graphite cylinder, and all internal parts are made of impermeable graphite materials.